Hub liner for railroad vehicles



Aug. 25, 1925.

J. G. BLUN-T HUB LINER FOR RAILROAD VEHICLES Filed May 14 1924 WITNESSESPatented Aug. 25, 1925.

UNITED STATES JAMES G. BLUN'I, OF SCHENECTADY, NEW YORK.

HUB LINER FOR RAILROAD VEHICLES.

Application filed May 14,

To all whom it may concern:

Be it known that 1,, JAMES G. BLUNT, a citizen of the United States, anda resident of Schenectady, in the county of Schenectady and State of NewYork, have invented a certain new and useful Improvement in Hub Linersfor Railroad Vehicles, of which improvement the following is aspecification.

The object of my invention is to provide a hub liner or wear plate,which will absorb the lateral pressure exerted by the wheel hubs againstthe faces of the journal boxes of railroad vehicles in passing aroundcurves, and to so construct and install said appliances that the removalof old and worn out ones, and their replacement by new ones, may beeffected without removing the j ournal boxes or disturbing any otherpart of the vehicle, thereby minimizing the time and labor required forsuch operations.

The improvement claimed is hereinafter fully set forth.

It has usually been the practice to apply to the face of a journal box,a liner of suitable material, secured to the journal box by screws orrivets, or by welding. It will be obvious that when such practice isfollowed, the removal of the journal box from the vehicle, becomesnecessary, in order to effect the replacement of a worn out liner. Mypresent invention applies a sectional liner, the members of which are soconstructed and connected as to be held securely in position when inservice, and to be readily separable and removable, for replacement by anew liner, whenever desired.

In the accompanying drawings: Figure 1 is a vertical axial sectionthrough a journal box and wheel hub, illustrating an application of myinvention in connection therewith; Fig. 2, a horizontal axial section;Fig. 3, a front view, in elevation, of the liner, the side which facesthe wheel hub being shown; Fig. 4, an isoletrical view of the same, theside facing the journal box being shown; and, Fig. 5, a partialhorizontal sec tion, through a section of the liner.

In the practice of my invention, referring descriptively to the specificembodiment thereof which is herein exemplified, a wear plate or liner,2, is interposed between the outer end of a journal box, 1, and the hubof the adjacent wheel, 4, said liner being of sectional construction,and comprising two counterpart members or sections, each ofsubstantially L shape, which are detachably 1924. Serial N0. 713,211.

connected by a bolt, 3, passing through flat bottomed lugs, 2, on thetops of the sections, adapted to rest on the journal box, and engaged bya nut, 3

A. dovetailed tongue, 2 is formed on each of the sections of the liner,2, said tongues being downwardly and inwardly inclined towards thevertical central plane of the liner, their outer sides being undercut orinwardly inclined, and their outer sides: perpendicular to the faces ofthe liner sections. The tongues, 2 fit in grooves, of correspondingtransverse section, and longitudinal inclination, in the outer face ofthe j ournal box, 1. Flat faces are thereby presented, against which theconnecting bolt, 3, pulls, when under the tension of its nut, The undersides of the bolt lugs, 2 are flattened, in order to rest on the top ofthe journal box, when the sections of the liner are in their correctvertical positions, in which the adjoining faces of the liner sectionsare not in contact, but stand slightly apart, so that, when tension isapplied to the bolt, it is resisted by the inner sides of the inclinedtongues, bearing against the corresponding 1ianner sides of the groovesin the journal An open topped oil recess, 2, is formed on the top ofeach of the liner sections, adjacent to the bolt lug, 2*, thereof, saidoil recesses communicating, through passages, 2 with oil grooves, 2 inthe faces of the sections adjoining the wheel hub. Oil is therebypermitted to be supplied to, and spread over, the entire faces of theliner sec tions, its application reducing materially the rapidity of thewear thereof. Lubrication of liner faces has always hitherto beendiflicult of accomplishment, and in the absence of effective means, isoften neglected, with the result of more rapid wear than if properlubrication is provided for.

Inasmuch as an easy sliding fit is maintained between the dovetailedtongues of the liner sections and the corresponding grooves of thejournal box, when replacing worn liners, it is only necessary to removethe connecting bolt, when each section of the liner can be slid out, inan upwardly inclined direction,-parallel with the tongues, and newsections be slid into place, and secured by tightening the nut on thebolt. It will be seen that when the liner is applied, and the nut of theconnecting bolt drawn to a tight bearing, the liner will be securelylocked in position, as the contact of the bolt lugs with the top of thejournal box prevents the liner from dropping, while the tension of theconnecting bolt counteracts any tendency of the liner to rise out of theupwardly diverging grooves of the journal box.

I claim as my invention and desire to secure by Letters Patent:

1. The combination, with a journal box and a Wheel and axle of arailroad vehicle, of a liner, interposed between the journal box andwheel hub, and comprising two separate L-shaped sections, each having aflat bottomed lug to rest on the journal box, an oil recess adjoiningsaid lug, and an oil passage, extending downwardly therefromsubstantially throughout the depth of the section; and a bolt passingthrough said lugs to lock the sections in place, the vertical legs ofthe sections each having an inclined undercut rib adapted to fit in acorrespondingly shaped groove in the end face of the journal box.

2. A hub liner, composed of two counterpart L-shaped parts adapted to beindependently inserted downwardly between the end of the journal box andthe wheel hub, each part comprising a vertical leg and a horizontal topportion, each top portion having an upstanding perforated lug providedwith a horizontal under surface adapted to rest on the journal box, theinner face of each leg having an inclined rib adapted to fit in acorresponding groove in the end face of the journal box, each topportion having an oil cell and a duct leading therefrom to the outerface of said top portion, said outer faces and the outer faces of saidlegs having oil grooves communicating with said ducts, and a boltpassing through said lugs to secure said parts in place.

3. A hub liner, consisting of two counterpart L-shaped parts, thevertical leg of each part having an inclined rib, the outer side ofwhich is undercut, adapted to fit in corresponding grooves in the endface of the journal box, and the horizontal tops of the parts being eachprovided with an upstanding and inwardly projecting apertured lugadapted to rest on the top of the journal box, and a bolt passed throughsaid lugs to secure the parts in place.

JAMES G. BLUNT.

